Patents by Inventor Yusuke NAMBA

Yusuke NAMBA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120134875
    Abstract: An aluminum alloy sheet for a lithographic printing plate which has excellent ink stain resistance, with a local defect in a photosensitive layer after long-term storage being hard to occur, and excellent the pit uniformity after a roughening and a manufacturing method thereof are provided. An aluminum alloy sheet for a lithographic printing plate containing a predetermined content of Fe, Si, Cu and Ti as well as one type or more selected from B and C, and composed of remaining Al and inevitable impurities, in which a concentration of an aluminum carbide present in the aluminum alloy sheet is not more than 8 ppm, an area occupancy of aggregation substances present on the aluminum alloy sheet surface after the roughening treatment with respect to an arbitrary circle with a radius 5 ?m in the aluminum alloy sheet surface is less than 10%. In a case where the area occupancy is not less than 10%, the aggregation substances are present at a rate of 1 to 2 pieces/50 cm2.
    Type: Application
    Filed: September 1, 2011
    Publication date: May 31, 2012
    Applicants: Furukawa-Sky Aluminum Corp., Fujifilm Corporation
    Inventors: Yusuke Namba, Shinya Kurokawa, Hirokazu Sawada, Akio Uesugi, Hirotake Osuga, Yoshikazu Suzuki, Kotaro Kitawaki
  • Publication number: 20120021356
    Abstract: A presensitized plate bringing about the lithographic printing plate which exhibits a high resistance to scumming and in which formation of bulges causing image dropouts is suppressed is provided with the lithographic printing plate support which includes an aluminum plate and an anodized film of aluminum provided on the aluminum plate, and has a micropore extending in the anodized film in the direction of depth from a film surface opposite with a film surface facing the aluminum plate. The micropore is sealed at least partially on its inside with protrusions made of boehmite, and the protrusions made of boehmite which are located on the anodized film have a mean height of less than 15 nm.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 26, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Yusuke NAMBA, Keio OKANO, Shinya KUROKAWA, Hirokazu SAWADA, Akio UESUGI